杜邦100CR薄膜耐电晕性能的结构研究  

Structural basis of the corona resistance performance of DuPont 100CR film

作　　者：张明玉[1,2,3] 金家骏 周建华 石慧 刘立柱[4] Zhang Mingyu;Jin Jiajun;Zhou Jianhua;Shi Hui;Liu Lizhu(Suzhou Vocational Institute of Industrial Technology,Suzhou Jiangsu 215104,China;Suzhou Volsun Electronics Technology Co.,Ltd.,Suzhou Jiangsu 215101,China;Suzhou TFC Optical Communication Co.,Ltd.,Suzhou Jiangsu 215129,China;Harbin University of Science and Technology,Haerbin Heilongjiang 150040,China)

机构地区：[1]苏州工业职业技术学院,江苏苏州215104 [2]苏州沃尔兴电子科技有限公司,江苏苏州215101 [3]苏州天孚光通信股份有限公司,江苏苏州215129 [4]哈尔滨理工大学,黑龙江哈尔滨150040

出　　处：《合成技术及应用》2018年第1期34-36,41,共4页Synthetic Technology & Application

基　　金：香港政府创新及科技基金ITF项目(ITS/381/14);国家自然科学基金青年项目(11404322);苏州工业职业技术学院科技项目(SGYKJ201707);苏州工业职业技术学院科研启动基金项目(2017kyqd005);江苏省高职院校青年教师企业实践培训资助项目(2017QYSJPX021);东吴柔性智力集聚计划

摘　　要：借助扫描电镜和透射电镜分析了杜邦卡普顿100CR耐电晕聚酰亚胺薄膜的结构,结果表明杜邦100CR薄膜呈现夹心结构,掺杂的片状无机组分主要集中在表层,掺杂厚度约10μm;表层进行无机组分掺杂的优点在于借助无机物良好的电晕阻隔效果来阻挡电晕放电向纵深发展,进而改变电晕的破坏方向;当表层有机质被电晕破坏殆尽时,表层的无机物可以迅速的塌陷形成无机物堆砌,堆砌在薄膜表面形成了屏蔽层,对内部的有机质形成了良好的保护作用;随着表面无机物的堆砌、塌陷,在这个过程中会形成大量的空洞,而形成了隔热保护层,阻隔了电晕放电产生的热量对薄膜内部的影响,防止了热击穿的提前发生,从而提高了薄膜的耐电晕性能。The structure of DuPont 100 CR corona resistance polyimide film was observed by using scanning electron microscopy and transmission electron microscope.The results showed that the DuPont 100 CR film had a sandwich structure and the doped inorganic flakes were mainly concentrated in the surface layers which thickness was about 10μm.The advantage of inorganic component doping in the surface layers was to prevent the corona from developing in depth by virtue of the good corona-resistant features of the inorganic material and changed the direction of the corona destruction.The inorganic component can collapse rapidly and form inorganic layer and pile up on the surface of the film to form a shielding layer while organic matter in the surface was destroyed by corona,which had a good protective effect on the organic matter in the interior.A large number of pores were formed with the piling and collapsing of inorganic component in the surface,which can perform as a heat insulation layer to block the heat generated by corona discharge and reduce its influence on the interior of the film and prevent the occurrence of thermal breakdown in advance.Thus,the corona resistance of the film was improved.

关 键 词：杜邦卡普100CR薄膜 结构 电晕老化 耐电晕 

分 类 号：TQ322[化学工程—合成树脂塑料工业]